I liked the episode, only bad thing I can say about it is that we maybe got one or two answers, then eleven thousand more questions. I personally won't critically judge the episodes until the entire season is over, as I believe that one episode isn't just one story. The Silents aren't gone, we're obviously gonna see them again, and once the season is over and we have a clear picture of what happened, that's when I feel I can safely judge on how well a story was done.

It was definitely one of those famous corners writers tend to get themselves in, but honestly it's just something you have to do. Have it where the main character gets lucky and just run with it, despite how it makes you feel as a writer.

River is my absolute fav in terms of who she actually is, I mean her backstory is so touching compared to any other companion. I know there are better characters in terms of personality such as Sarah Jane or Donna/Rose/Martha but in terms of what the character is about you can't top River. She is like a backwards Doctor, I mean she knows every little detail about him to the point of being a Doctor in her own right but sadly it ends for her just as we meet her and by the time we actually find out who she is she knows nothing of who the Doctor is.

Don't get me wrong; I think her story is very interesting. I just don't like her personality.

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

How come you're talking like you've seen this episode? It says it's a new one

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

Basically...you know what, screw it, I can't explain it very well, so I'm going to give you the synopsis from wikipedia (Spoilered for the sake of the people who haven't watched the episode yet and don't want to know the plot):

Wikipedia wrote: After a two-month break from their travels with the Doctor (Matt Smith), Amy Pond (Karen Gillan) and husband Rory Williams (Arthur Darvill) receive a "TARDIS blue"-coloured envelope providing a time, date and set of coordinates leading them to Utah. They arrive to meet River Song (Alex Kingston), who also received an envelope, and the Doctor, now 1,103 years old, nearly 200 years older from when he last saw them. He takes them to a picnic at a nearby lake, telling them he is taking them on a trip to "Space 1969". Amy catches a glimpse of a mysterious figure from a distance, but appears to immedietely forget about it after she looks away. Later, a figure in a space suit emerges from the lake; the Doctor approaches it but warns his companions not to interfere. His companions are horrified to witness the astronaut killing him before he can fully regenerate. The three are met by Canton Everett Delaware III (William Morgan Sheppard) who also received an envelope and was intructed to bring a can of fuel to give the Doctor a water-bourne Viking-style funeral.

Regrouping at a diner, Amy, Rory and River dicuss the sender of the envelopes when they are shocked to see the Doctor walking in, 200 years younger again. He reveals he too was given an envelope, but does not know who sent it to him. Reluctently his companions decide not to tell the Doctor about his death and that it was his future self who sent the envelopes. The four do a search on Delaware and "Space 1969." The TARDIS ends up cloaked in the Oval Office, where President Richard Nixon (Stuart Milligan) converses with a younger Delaware (Mark Sheppard) about a series of phone calls he received from a young girl asking for help. The Doctor quickly gains Delaware's trust, convincing Nixon to give him a few minutes to locate the girl.

While the Doctor works, Amy sees the mysterious figure again, and excuses herself to the restroom. There, the figure, a member of a species known as the Silence, waits for her and destroys an innocent woman despite Amy's pleas. Realising the alien is wiping her memory of their encounter, Amy takes a picture of it. When she leaves however, she yet again forgets the encounter. By then the Doctor finds the girl's location, a building near Cape Canaveral, Florida at the intersection to streets named Jefferson, Adams, and Hamilton. The Doctor and his companions leave in the TARDIS, followed closely by a curious Delaware.

Upon arrival, they find pieces of a space suit and alien technology. River and Rory explore a vast network of tunnels that have apparently spread across the planet for centuries, unnoticed by the human population. The two find a control room with a similar design to one seen in "The Lodger" but are unaware they are surrounded by the Silence. Meanwhile, Delaware hears the screaming girl and gives chase. As Amy and the Doctor follow, Amy tells him she is pregnant. When they find Delaware unconscious an astronaut appears. Without thinking Amy picks up Delaware's gun and shoots at the suit. However, she realises too late that the visor opened to reveal the girl.

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."

"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."